its a club set up by either diners or a chef where they meet in either someone's house or maybe at a restaurant after hours or on a day off and the chef cooks a meal (usually a surprise tasting menu with no substitutions).

Some are secret (only by invite) and some are open. Here's an example of an "open" but technically underground dining club in Miami...http://cobayamiami.blogspot.com/

I'm not sure if Homeslice is still operating. I went to a few of their dinners (enjoyable but not truly memorable) and used to get e mail invites from them regularly but haven't gotten anything from them in some time.

Sorry all... being in London and 5 hours ahead of local time, I'm running a little behind on my posts. Here's a rather impressive list that I ran across last evening right after posting this... http://www.saltshaker.net/underground...

fm1963, thanks for the info... I'll definitely look into these! I've heard Bite New York tends to be one of the better of the lot, but is currently closed until November.

I've discovered that New York's underground dining scene can be very hit and miss. So, I would suggest the experience to everyone, but strive to get on the more exclusive lists, because those tend to be the most memorable experiences! A lot of places keep FB pages to keep patrons up-to-date on their happenings.